Instant heat when you need it, where you need it

Capacities from 100,000 to 250,000 Btu/Hr

Ideal for Spot or Total heating, indoors or out - Partially open buildings, construction sites, unheated work areas, supplemental heat in large buildings, thawing, emergency heat and other industrial and commercial applications

Operates on Natural or LP Gas

No Electricity required

Instant heat when you need it, where you need it

Capacities from 100,000 to 250,000 Btu/Hr

Ideal for Spot or Total heating, indoors or out - Partially open buildings, construction sites, unheated work areas, supplemental heat in large buildings, thawing, emergency heat and other industrial and commercial applications

Operates on Natural or LP Gas

No Electricity required

Highly Radiant Efficient High Intensity Ceramic Heaters

Suitable for Horizontal Or Angle Mount Up To 45 degree

All Heaters Are Equipped With 100% Gas Shut-off Safety Control

Indirect Vented Operation

Durable Cast Iron Burner for Precision-Crafted Performance and for Proper Combustion

Stainless Steel Tile Retainer Assembly

Corrosion Resistant Aluminized Steel Body Construction

Specially Designed Internal Plenum Chamber for Proper Air/Gas Mixture

Coated High Temperature Emitter Tiles for Higher Radiant Efficiency

Iron Oxide Coating Increases Surface Emissivity By 13%

Incoloy 800 Reverberatory Screen for Secondary Radiating Surface and Additional Safety

Highly Efficient Aluminum Reflectors

Double formed Edges for Rigidity

Highly Radiant Efficient High Intensity Ceramic Heaters

Suitable for Horizontal Or Angle Mount Up To 45 degree

All Heaters Are Equipped With 100% Gas Shut-off Safety Control

Indirect Vented Operation

Durable Cast Iron Burner for Precision-Crafted Performance and for Proper Combustion

Stainless Steel Tile Retainer Assembly

Corrosion Resistant Aluminized Steel Body Construction

Specially Designed Internal Plenum Chamber for Proper Air/Gas Mixture

Coated High Temperature Emitter Tiles for Higher Radiant Efficiency

Iron Oxide Coating Increases Surface Emissivity By 13%

Incoloy 800 Reverberatory Screen for Secondary Radiating Surface and Additional Safety

Highly Efficient Aluminum Reflectors

Double formed Edges for Rigidity

Fenwal DSI has an Onboard Relay Switch to Control the Blower Motor (120 Volt AC) and Allows for Heater Control with Either 24 Volt or 120 Volt Thermostat

The Fenwal DSI has a Post-Purge Feature

A 24 Volt Thermostat Must be Used to Enable the Post-Purge Feature

A Line Voltage Thermostat will Disable the Post-Purge Feature

One Required for Each Burner After the First Burner in a Zone (1st burner connects to 24 Volt thermostat)

Corrosion-free aluminized steel main frame

No direct venting required

Instant heat on demand - Reaches maximum operating temperature in less than one minute

Fuel Savings of 40% to 75% over conventional warm air systems

Polished Aluminum Reflectors

Factory prewired, prepiped and tested

Made in USA

EcoSchwank heaters, efficient and economical High Intensity Infrared Heaters

Up to 52% radiant energy conversion rate

Green technology that reduces fuel costs and CO2 emissions by up to 35%

Ability to reach full operation in just 2 minutes

Innovative ceramic tile design, which increases radiant efficiency and reduces fuel costs

EcoSchwank heaters, efficient and economical High Intensity Infrared Heaters

Up to 52% radiant energy conversion rate

Green technology that reduces fuel costs and CO2 emissions by up to 35%

Ability to reach full operation in just 2 minutes

Innovative ceramic tile design, which increases radiant efficiency and reduces fuel costs